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UNITED STATES PATENT OFFICE.

FOREST M. LAMPSON AND GEORGE \V. HOGBEN, OF RlPON, VISOONSIN,

ASSIGNORS TO THE RIPON VIBE DOOR AND PANY, OF SAME PLACE.

WINDOW seamen COM- ADJUSTABLE WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 361,825, dated April26, 1887.

(No model.)

To aZZ. whom it may concern.-

Be it'known that we, FOREST M. LAMPSON and GEORGE W. HOGBEN, both ofRipon, in the county of Fond du Lac and State of Wiscousin, havednventeda new and Improved Adjustable WVindow-Screen, of which the fol lowing isa full, clear, and exact description.

Our invention relates to adjustable windowscreens, and has for itsobject to improve the construction of the screens for which UnitedStates Letters Patent No. 328,69l were issued to us October 20, 1885, insuch manner that gulde-pins separatefrom the springs, by which theadjustable strips or plates are forced outward, may be dispensed with,and the spring pressed plates will be held snugly to the face of themain screen-frame.

The invention consists in certain novel features of construction andcombinations of parts of the window-screen, all as hereinafter fullydescribed and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation of a window-frame and its sashes with ouradjustable screen applied as in use. Fig. 2 is a sectional plan viewtaken on the line :10 m, Fig. 1, and partly broken away; and Fig. 3 isan enlarged sectional plan View of one of theside bars of thescreen.

The window-screen is made with a frame, A, to which the netting wire orfabric B is held in any approved way, say by means of beaded moldings b,braided over the netting to the irame A, or by staples or tacks.

Over the opposite side bars, a a, of the frame A there are placedloosely the adjustable strips or plates 0 (J, and to opposite ends ofthese plates there is fixed the outer end of the arm Z of an- L- shapedwire, spring, D, the extremity of the other arm, d, of which is fixed,by staples or otherwise, at 'd ,'to the frame side bar, a. The arm (I ofeach spring D passes through a guide eye or staple, e, fixed to the sidebar, a.

It is obvious that the passage of the arm portions d of the springs Dthrough the eyes 0 011 frame A hold the springs to place against theframe, while allowing ample freedom of movement to the side plates, 0 O,on the frame,

and separate guide-pins for the plates are unnecessary.

At about the vertical center of each of the side bars, a, of frameAthere is fixed in a horizontal slot, f, of the bar a wire or rod, F, onwhich is fitted loosely an eye or loop, 9, formed by v the handle-loopG. K

\Vhen the sash of the window is openedthelower sash, H, for instancethewire screen may be easily placed in the opening by taking hold of theopposite loops G G and drawing the opposite plates 0 O inward, so thatthey may pass within the stop-beads I on the windowframe, and when thescreen -frame A is in proper place the loops G will be released and theopposite plates 0 C will instantly be forced by the springs D againstthe window-frame and make a close joint therewith to exclude insects ordust. If desired, the screen may be placed in position by entering oneside bar, a, of it in the sash way or groove and then drawing back theopposite plate 0 by its handle-loop G until the other side bar may passthe adjacent stop-bead on the sash and enter the sashway, whereupon theloop G will be released and the screen will be held securely by thesprings.

It is evident that the yielding and Springpressed plates 0 0 allow forconsiderable variation in the width of window-frames which the screenwill fit closely.

A spring-pressed plate, 0, at one side of the frame A wouldsuffiee inmany cases; but we prefer to use the plates at both sides of the frame,as shown and above described, as they afford a better chance for acloser fit of the screen-frame at both sides of the window-frame andbetween the sash and sill or head of the window-frame than one platealone would afford, as will readily be understood.

Having thus fully described our invention,

described, whereby the plate 0 will be held flat 10 to theframe A andcan be adjusted thereon,

as set forth.

FOREST M. LAMPSON. GEORGE W. HOGBEN.

Witnesses:

FREDERICK SPRATT, ALPHEUS M. LANING.

